any monosaccharide sugar containing four atoms of carbon per molecule
例句
用作名词 (n.)
Neither tetrose nor mannan group had metastasis of the liver, and the weights of liver in the two groups were significantly lower than in the control. 四糖组及甘露糖聚组均无肝外转移发生,两组小鼠的肝脏湿重也明显低于对照组。